NumberPicker

NumberPicker is Android’s wheel control for choosing a value from a bounded range or a short label list.

In the current Droid source pin it is a placeable view control. Shared view interaction and layout APIs work; min/max/value, wrapping, displayed labels, and listeners are not wrapped yet.

Use it when…

Use a number picker when the user should choose one value from a small, obvious range and a wheel feels faster than typing.

For free numeric input, use EditText. For one-of-few named options, a radio group or spinner-shaped control is usually clearer.

How it behaves

NumberPicker participates in the view hierarchy like other controls. You can assign an id, attach onClick(_:), set padding, and control enabled(_:) / visibility(_:).

The current type does not expose minValue(_:), maxValue(_:), value(_:), wrapSelectorWheel(_:), displayedValues(_:), formatters, or value-change listeners at this pin.

Examples

Place a quantity control

NumberPicker(id: 4001)
    .padding(h: 16, v: 12)

Disable it until a range is known

NumberPicker(id: 4002)
    .enabled(false)

Initializers

NumberPicker()
NumberPicker(id: 4001)

Notes

Android’s NumberPicker owns range, wrapping, and displayed labels. None of that is part of the current Droid surface. Treat this page as placement plus shared view behavior only.